I was in a similar position as this entrepreneur. I had the company I created sponsored my own employment visa in Hong Kong. I often took less salary than my employment contract that was provided with the visa application specified because that's what happens sometimes with bootstrapped businesses.
Luckily for me, the Hong Kong government isn't the Swedish government, and didn't give me a hard time when renewing my visa.
It will be Sweden's loss if they deport this entrepreneur.